Rice cultivars responses to moisture stress during seed germination and early-seedling growth

<p>Drought is the major environmental factor affecting crop growth, yield and quality. Two experiments were conducted to understand rice genotypic variability responses to drought stress conditions during seed germination and early-seedling growth. In Experiment I, the influence of wide range...

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Main Author:	Singh, Bhupinder
Other Authors:	K. Raja Reddy
Format:	Others
Language:	en
Published:	MSSTATE 2016
Subjects:	Plant and Soil Sciences
Online Access:	http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142016-105131/

id	ndltd-MSSTATE-oai-library.msstate.edu-etd-03142016-105131
record_format	oai_dc
spelling	ndltd-MSSTATE-oai-library.msstate.edu-etd-03142016-1051312016-07-15T15:48:16Z Rice cultivars responses to moisture stress during seed germination and early-seedling growth Singh, Bhupinder Plant and Soil Sciences <p>Drought is the major environmental factor affecting crop growth, yield and quality. Two experiments were conducted to understand rice genotypic variability responses to drought stress conditions during seed germination and early-seedling growth. In Experiment I, the influence of wide range of osmotic stress on seed germination properties of 15 rice cultivars were studied using polyethylene glycol media. In Experiment II, seedling morph-physiological parameters including root traits were quantified by subjecting rice seedlings to three different soil moisture treatments, 100, 66 and 33% field capacity. Rice cultivars differed in their response to drought at both the stages. Cultivars were classified into different drought tolerant groups based cumulative drought response indices. Based on seed- and early-season growth and developmental responses, RU1104122, Rex, CL111 and RU1304154 were identified as drought tolerant among the rice cultivars tested. The identified tolerant cultivars will be a source for rice breeders to develop new drought tolerant cultivars.</p> K. Raja Reddy Timothy W. Walker Edilberto Redoña W. Brien Henry MSSTATE 2016-04-18 text application/pdf http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142016-105131/ http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142016-105131/ en unrestricted I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, Dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Mississippi State University Libraries or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, Dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, Dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, Dissertation, or project report.
collection	NDLTD
language	en
format	Others
sources	NDLTD
topic	Plant and Soil Sciences
spellingShingle	Plant and Soil Sciences Singh, Bhupinder Rice cultivars responses to moisture stress during seed germination and early-seedling growth
description	<p>Drought is the major environmental factor affecting crop growth, yield and quality. Two experiments were conducted to understand rice genotypic variability responses to drought stress conditions during seed germination and early-seedling growth. In Experiment I, the influence of wide range of osmotic stress on seed germination properties of 15 rice cultivars were studied using polyethylene glycol media. In Experiment II, seedling morph-physiological parameters including root traits were quantified by subjecting rice seedlings to three different soil moisture treatments, 100, 66 and 33% field capacity. Rice cultivars differed in their response to drought at both the stages. Cultivars were classified into different drought tolerant groups based cumulative drought response indices. Based on seed- and early-season growth and developmental responses, RU1104122, Rex, CL111 and RU1304154 were identified as drought tolerant among the rice cultivars tested. The identified tolerant cultivars will be a source for rice breeders to develop new drought tolerant cultivars.</p>
author2	K. Raja Reddy
author_facet	K. Raja Reddy Singh, Bhupinder
author	Singh, Bhupinder
author_sort	Singh, Bhupinder
title	Rice cultivars responses to moisture stress during seed germination and early-seedling growth
title_short	Rice cultivars responses to moisture stress during seed germination and early-seedling growth
title_full	Rice cultivars responses to moisture stress during seed germination and early-seedling growth
title_fullStr	Rice cultivars responses to moisture stress during seed germination and early-seedling growth
title_full_unstemmed	Rice cultivars responses to moisture stress during seed germination and early-seedling growth
title_sort	rice cultivars responses to moisture stress during seed germination and early-seedling growth
publisher	MSSTATE
publishDate	2016
url	http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142016-105131/
work_keys_str_mv	AT singhbhupinder ricecultivarsresponsestomoisturestressduringseedgerminationandearlyseedlinggrowth
_version_	1718350046373609472

Rice cultivars responses to moisture stress during seed germination and early-seedling growth

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